Bugfix

nabu/reconstruction/fbp.py

@@ -176,7 +176,7 @@ class Backprojector(CudaProcessing):
             self._d_msin,
             1.0 # scale factor # TODO customize
         ]
-        if self.n_slices >= 1:
+        if self.n_slices > 1:
             self.kern_proj_args.insert(3, self.n_slices)
         self.kern_proj_kwargs = {
             "grid": self.grid,